Subsequently, this information was fed with the North Atlantic Treaty Organization special services.

74-year-old Viktor Kudryavtsev, a researcher at the Central Research Institute of Machine Building (TsNIIMash), is charged with passing classified information over hypersonic technologies to one of NATO countries, Kommersant reported on Monday.

"According to a source in law enforcement agencies, Mr. Kudryavtsev is charged with passing classified information on technologies used in the development of hypersonic aircraft to one of the NATO countries," the edition states.

At the same time, the interviewee added that "this information was fed with the North Atlantic Treaty Organization special services."

The person under investigation, according to the newspaper, does not admit his guilt. TsNIIMash does not comment on the progress of the case yet, Roscosmos confirmed the arrest of the scientist, Kommersant writes.

Last Friday, law enforcement officers conducted searches in the TsNIIMash offices and the office of Dmitry Payson, director of Research and Analysis Center, United Rocket and Space Corp (URSC).

An informed source told Interfax "some members of the Institute left the building accompanied by people in civilian clothes." According to the interlocutor of the agency, "it is possible that they could be interrogated and detained."